486
FNCA52 TJSJ 191930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST MON OCT 19 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-200800-
SOUTHEAST COASTAL PLAINS-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 30 30
TEMP (24H TREND) 73 (-2) 90 (+1) 74 91
RH % (24H TREND) 92 (+5) 52 (-5) 89 51
WIND 20FT/EARLY(MPH) E 9 E 10 E 5 E 9
WIND 20FT/LATE(MPH) NE 6 SE 10 NE 5 SE 9
MIXING HGT(FT-AGL/MSL) 4710 4320
TRANSPORT WND (MPH) SE 8 SE 9
VENT RATE (KT-FT) 32970 34560
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-200800-
SOUTHERN HILLS-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30 20
TEMP (24H TREND) 69 (-4) 88 (+3) 70 88
RH % (24H TREND) 97 (+5) 61 (-6) 96 60
WIND 20FT/EARLY(MPH) E 6 E 8 LGT/VAR SE 8
WIND 20FT/LATE(MPH) LGT/VAR SE 8 LGT/VAR SE 9
MIXING HGT(FT-AGL/MSL) 5310 5230
TRANSPORT WND (MPH) SE 7 SE 8
VENT RATE (KT-FT) 31860 36610
DISPERSION 5 5
DSI 1 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-200800-
NORTH COASTAL PLAINS-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 70 40 20
TEMP (24H TREND) 72 (-3) 90 (+1) 72 91
RH % (24H TREND) 98 (+5) 60 (-7) 97 59
WIND 20FT/EARLY(MPH) SE 10 SE 6 SE 8 SE 8
WIND 20FT/LATE(MPH) SE 5 E 11 LGT/VAR E 12
MIXING HGT(FT-AGL/MSL) 4630 4950
TRANSPORT WND (MPH) SE 6 SE 6
VENT RATE (KT-FT) 23150 24750
DISPERSION 5 5
DSI 2 5 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-200800-
NORTHERN HILLS-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 60 40 40
TEMP (24H TREND) 70 (-2) 90 (+2) 70 89
RH % (24H TREND) 98 (+2) 62 (-4) 97 60
WIND 20FT/EARLY(MPH) SE 8 LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR NE 6 LGT/VAR NE 8
MIXING HGT(FT-AGL/MSL) 5060 5060
TRANSPORT WND (MPH) SE 5 SE 5
VENT RATE (KT-FT) 20240 20240
DISPERSION 4 5
DSI 1 5 1 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-200800-
WEST COAST-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 10 10
TEMP (24H TREND) 72 (-2) 91 (+1) 72 92
RH % (24H TREND) 96 (+3) 61 (-4) 95 60
WIND 20FT/EARLY(MPH) E 5 SE 8 E 5 SE 10
WIND 20FT/LATE(MPH) E 6 SE 9 E 6 SE 12
MIXING HGT(FT-AGL/MSL) 4480 4620
TRANSPORT WND (MPH) SE 6 SE 10
VENT RATE (KT-FT) 22400 41580
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-200800-
EASTERN INTERIOR-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 20 20
TEMP (24H TREND) 71 (-3) 89 (+2) 71 90
RH % (24H TREND) 97 (+4) 60 (-5) 96 59
WIND 20FT/EARLY(MPH) SE 8 SE 8 SE 8 SE 9
WIND 20FT/LATE(MPH) SE 6 SE 9 SE 5 SE 10
MIXING HGT(FT-AGL/MSL) 5710 6140
TRANSPORT WND (MPH) SE 7 SE 9
VENT RATE (KT-FT) 34260 49120
DISPERSION 5 5
DSI 1 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-200800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40 30
TEMP (24H TREND) 69 (-4) 86 (+3) 70 87
RH % (24H TREND) 99 (+3) 62 (-7) 99 62
WIND 20FT/EARLY(MPH) SE 6 SE 6 SE 6 SE 8
WIND 20FT/LATE(MPH) LGT/VAR SE 8 LGT/VAR SE 9
MIXING HGT(FT-AGL/MSL) 4710 4610
TRANSPORT WND (MPH) SE 7 SE 9
VENT RATE (KT-FT) 28260 36880
DISPERSION 5 5
DSI 2 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-200800-
CENTRAL MOUNTAIN RANGE-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 30 30
TEMP (24H TREND) 67 (-4) 86 (+4) 68 87
RH % (24H TREND) 98 (+3) 64 (-8) 98 62
WIND 20FT/EARLY(MPH) LGT/VAR SE 5 LGT/VAR SE 6
WIND 20FT/LATE(MPH) LGT/VAR SE 5 LGT/VAR SE 8
MIXING HGT(FT-AGL/MSL) 5620 6290
TRANSPORT WND (MPH) SE 6 SE 8
VENT RATE (KT-FT) 28100 44030
DISPERSION 5 5
DSI 1 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-200800-
CAYEY MOUNTAIN RANGE-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30 30
TEMP (24H TREND) 70 (-2) 85 (+2) 70 85
RH % (24H TREND) 98 (+2) 63 (-4) 98 62
WIND 20FT/EARLY(MPH) E 6 SE 6 LGT/VAR SE 6
WIND 20FT/LATE(MPH) LGT/VAR SE 6 LGT/VAR SE 8
MIXING HGT(FT-AGL/MSL) 5210 5050
TRANSPORT WND (MPH) SE 7 SE 8
VENT RATE (KT-FT) 31260 35350
DISPERSION 5 5
DSI 1 6 0 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-200800-
VIEQUES-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40 40
TEMP (24H TREND) 77 (-2) 90 (+1) 77 90
RH % (24H TREND) 86 (+3) 57 (-4) 86 58
WIND 20FT/EARLY(MPH) E 10 SE 8 SE 8 SE 9
WIND 20FT/LATE(MPH) E 9 SE 6 SE 8 SE 8
MIXING HGT(FT-AGL/MSL) 3240 3210
TRANSPORT WND (MPH) SE 9 SE 9
VENT RATE (KT-FT) 25920 25680
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-200800-
CULEBRA-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40 40
TEMP (24H TREND) 78 (-2) 89 (+1) 79 89
RH % (24H TREND) 85 (+4) 59 (-5) 85 60
WIND 20FT/EARLY(MPH) E 10 SE 8 SE 8 SE 9
WIND 20FT/LATE(MPH) E 9 SE 8 SE 8 SE 9
MIXING HGT(FT-AGL/MSL) 3210 3310
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 25680 29790
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-200800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30 30
TEMP (24H TREND) 74 (-2) 92 (+2) 74 91
RH % (24H TREND) 93 (+5) 51 (-5) 86 51
WIND 20FT/EARLY(MPH) E 6 E 11 E 8 E 13
WIND 20FT/LATE(MPH) E 9 SE 11 E 8 SE 14
MIXING HGT(FT-AGL/MSL) 4880 4540
TRANSPORT WND (MPH) SE 10 SE 13
VENT RATE (KT-FT) 43920 49940
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-200800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 50
TEMP (24H TREND) 76 (-4) 88 (+1) 77 88
RH % (24H TREND) 87 (+5) 62 (-4) 86 62
WIND 20FT/EARLY(MPH) E 10 SE 9 SE 9 SE 9
WIND 20FT/LATE(MPH) E 9 SE 8 SE 9 SE 9
MIXING HGT(FT-AGL/MSL) 3320 3330
TRANSPORT WND (MPH) SE 9 SE 12
VENT RATE (KT-FT) 26560 33300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-200800-
ST CROIX-
330 PM AST MON OCT 19 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 40
TEMP (24H TREND) 77 (-2) 89 (+1) 77 89
RH % (24H TREND) 91 (+5) 63 (-4) 89 63
WIND 20FT/EARLY(MPH) E 10 SE 9 E 8 SE 9
WIND 20FT/LATE(MPH) E 9 SE 9 E 8 SE 9
MIXING HGT(FT-AGL/MSL) 4470 4420
TRANSPORT WND (MPH) SE 10 SE 9
VENT RATE (KT-FT) 40230 35360
DISPERSION 5 5
DSI 6 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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